Razor-honing machine



("No Model.) v

W. H. MATH'ER; RAZORHONING MACHINE. N0. 523,438. Patented July 24,1894'.

Witnesses: /L Inventor.

Attorney "m: norms PETERS 00. PNDTGUTHQ, wnsronarom u c UNITED STATESPATENT Fr1cn.f

WILLIAM H. MATHER, OF CLEVELAND, OHIO.

RAZOR-HONING MACHlNE.-

SPECIFICATION forming part of Letters Patent No. 523,438, dated July 24,1894.

' Application filed April 9, 1894. $erial No. 506,840. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. MATHER, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a new and useful Improvement in Razor- Honing Machines, of

4 which the following is a specification.

This invention relates to a machine for honing or sharpening razors andit has for its object to produce a machine of simple construction whichcan be manufactured at small cost and which is so organized as to permitthe ready insertion of the razor into the holder, without danger ofnicking its edge, and so that the pressure of the honing devices againstthe razor blade is under the control of the operator.

In the accompanying drawings:--Figure 1 is a vertical longitudinalsection of my improved. honing machine, showing a razor clamped in thesame. Fig. 2 is a top plan view of the machine, Fig. 3 is a transversesection thereof.

Like letters of reference refer to like parts in the several figures.

Ais the base of the machine which is preferably provided in its underside with a clamp for attaching it to the top of a table or otherprojecting support, the clamp shown in the drawings consisting of arearwardly extending hook or arm a and a thumb screw a carried by thehook and bearing against the un der side of the table-top or support.

B is a holder which is arranged on the rear portion of the base and inwhich the razor is clamped with its edge upward. This holder consists ofa post or standard bifurcated at its upper end to form a seat for therazor shank, and horizontal clamping screws 1) passing through the jawsof the post and bearing against opposite sides of the shank, as shown inFig. 2. The rear portion of the razor shank passes through the eye 0 ofa bolt 0, whichis vertically movable in a post or standard C arranged onthebase in rear of the holder B. This eye bolt passes through a verticalopening extending through the standard (3 and the base, and itsprojecting lower portion is provided with a screw nut c which bearsagainst the under side of the base. The eye bolt 0' prevents the shankof the razor from rocking upward on the holder, and it enables the same-to be drawn downward for giving the blade the desired inclination, byturning the screw not of the eye bolt in the proper direction.

dis an adjusting screw arranged in the rear standard 0, behind the eyebolt 0 and bear ing at its upper end against the under side of the razorshank, the screw being preferably formed at its upper end with a groovedhead,

in which the rear end of the shank is seated,

as shown in the drawings. The adjusting screw 01 prevents the razorshank from rocking downward in the holder and it may also be employedfor tilting the blade downward, at the desired angle, this beingaccomplished. by loosening the eye bolt 0 and screwing the adjustingscrew upward by means of the knob at its lower end.

E E represent hones or honing stones arranged on opposite sides of therazor blade and capable of reciprocating lengthwise ot'. the blade forsharpening the same. These hones are secured in clamps or holders f ofany suitable construction which are attached to reciprocating carriersG. The latter slide upon longitudinal guide rods H arranged in front ofthe razor holder B, on opposite sides of the blade, and are supported attheir ends in upright lugs or standards It rising fromthe base. Each ofthese carriers is provided at its lower end with a hub or sleeve gwhichsurrounds the adjacent guide rod and which permits the carrier to swinglaterally toward 8 5 and from the razor blade, as well as to slide uponthe guide rod. Each carrier is formed on its outer side with a handle orenlargement-"1 g for operating the same.

The guide rods of the carriers are inclined from the heel toward the toeof the razor blade, as shown, so that the hones are drawn obliquely overthe edge of the blade, thereby" producing the necessary shearing actionof the hones. The hone clamps b are preferably pivoted to the carriersat their upper ends by pins f arranged transversely of the carriers topermit the hones to assume the proper angle to bear against the sides ofthe thickened razor back, as well as against its cutting edge. to:

i represents springs secured at their upper ends to the carriers andbearing at their free lower ends against the adjacent sides of the honeclamps, as shown in Fig. 3, whereby the hones are yieldingly pressedagainst the sides of the razor back and at the same time permitted toaccommodate themselves to the thickness of the back.

3' represents adjustable stops or collars arranged on the guide rods Hfor limiting the forward stroke of the hone carriers in accordance withthe length of the razor blade to be sharpened. These stop collars areprovided with set screws for clamping them in place on the guide rods.

In using my improved machine, the operator clamps and centers the razorin the holder 13 by means of the clamping screws b and ad- 15 justs theblade at the desired inclination by means of the eye bolt 0 andadjusting screw (1. He then grasps one of the hone carriers with eachhand and reoiprocates the hones in opposite directions, pressing thesame against the razor blade during their forward movement and movingthem laterallyout of contact with the blade during their backwardmovement. By this operation the blade is honed alternately on oppositesides without interfer- 2 5 ence of the hones. As the hones movedownward at an angle to the cutting edge of the razor, as Well asforward,the desired shearing action is obtained throughout the length ofthe blade, and as the hones bear against the sides of the razor-back,they are always presented to the cutting edge of the razor at the properangle.

The operator has full control of the hones and can therefore exert agreater or' less pressure upon them, as the condition of the blade mayrequire. This is an important advantage in sharpeninga dull razor as itenables the operator to apply the bones with a firm pressure at firstand gradually diminish 40 thus saving the time and labor required inhoning a dull razor with machines in which the "pressure of the hones isdependent upon a spring having a light uniform tension.

The hones may be swung outward at a considerable distance from eachother, as shown in Fig. 2, and there is therefore no liability ofstriking the edge of the razor blade against the hones and nicking thesame in adjusting the same in the machine. This wide clearance of thehones also gives the operator ac cess to the blade for feeling of itsedge from time to time.

The pivoted carriers permit the faces of 55 the honing stones to bebrought into contact the pressure as the blade becomes sharpened,

structed of different sizes for sharpening the blades of butchers knivesand other knives which require a sharp cutting edge.

I claim as my invention---- 1. The combination with a base, of a razorholder or support arranged on said base, lon- 7o gitudinal guidesarranged in front of said holder or support on opposite sides of therazor blade clamped in the holder and separate hones capable ofindependent reciprocating movement on said guides, substantially as set7 5 forth.

2. The combination with a base and a holder or support arranged on saidbase, of inclined guide rods arranged in front of said holder,reciprocating carriers mounted on said guide rods and capable ofindependent movement thereon and hones attached to said carriers,substantially as set forth.

3. The combination with a base, and a razor holder arranged thereon, oflongitudinal 8 5 guides arranged in front of said holder, andreciprocating hone carriers moving on said guides and capable ofswinging laterally toward and from the razor blade clamped in saidholder, substantially as set forth. 0

l. The combination with a base and a razor holder arranged thereon, oflongitudinal guide rods arranged in front of said holder, carrierssliding upon said rods, hone clamps pivoted at their upper portions tosaid carriers and springs which resist the outward movement of the lowerportions of said clamps, substantially as set forth.

5. The combination with abase and a razor holder or support arrangedthereon, of an eye 10c bolt arranged in rear of said holder or supportand engaging with the shank of the razor and an adjusting screw bearingagainst the shank of the razor, substantially as set forth.

Witness my hand this 30th day of March,

WILLIAM H. MATHER. \Vitnesses:

HENRY GOLDSMITH, WILLIAM Cnoss.

